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Optical Engineering

Analytical model of plasmonic resonance from multiple core-shell nanoparticles
Author(s): Mohammad Habibur Rahaman; Brandon A. Kemp
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Paper Abstract

We present the analytical solution of multiple core-shell nanoparticles using the multiple scattering theory. Plasmonic resonance from two and three core-shell nanoparticles is investigated to understand the optical properties of multiple core-shell nanoparticles. It is shown that the optical properties can be tuned either by changing the distance between core-shell nanoparticle or by changing their core-to-shell ratio. If the distance of two core-shell nanoparticle increases, the particles respond like two isolated core-shell nanoparticle, and if the distance decreases they show stronger resonance. We also demonstrate that the relative position of multiple core-shell nanoparticles plays a vital role for the enhancement of field intensity. The results provide a fast approach to analytically probe the tunable optical properties that solid single or multiple metal nanoparticles can demonstrate. We have validated our results using finite element method.

Paper Details

Date Published: 23 February 2017
PDF: 9 pages
Opt. Eng. 56(12) 121903 doi: 10.1117/1.OE.56.12.121903
Published in: Optical Engineering Volume 56, Issue 12
Show Author Affiliations
Mohammad Habibur Rahaman, Arkansas State Univ. (United States)
Brandon A. Kemp, Arkansas State Univ. (United States)

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